EP1854848A3 - Continuous process for preparing of a pigment flush - Google Patents

Continuous process for preparing of a pigment flush Download PDF

Info

Publication number
EP1854848A3
EP1854848A3 EP07007155A EP07007155A EP1854848A3 EP 1854848 A3 EP1854848 A3 EP 1854848A3 EP 07007155 A EP07007155 A EP 07007155A EP 07007155 A EP07007155 A EP 07007155A EP 1854848 A3 EP1854848 A3 EP 1854848A3
Authority
EP
European Patent Office
Prior art keywords
flush
pigment
organic medium
press cake
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07007155A
Other languages
German (de)
French (fr)
Other versions
EP1854848A2 (en
Inventor
George H. Robertson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sun Chemical Corp
Original Assignee
Sun Chemical Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sun Chemical Corp filed Critical Sun Chemical Corp
Publication of EP1854848A2 publication Critical patent/EP1854848A2/en
Publication of EP1854848A3 publication Critical patent/EP1854848A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0021—Flushing of pigments
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
    • C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment

Abstract

The present invention provides a process for continuous production of pigment flushes and an apparatus for carrying out the process. In the process of the invention, the pigment press cake is first fluidized. The fluidized press cake and a hydrophobic liquid organic medium are fed into a twin screw extruder. The kneading of the organic medium and press cake between the twin screws flushes the pigment into the organic medium. The water phase and flushed pigment phase are separated by removing at least part of the water phase through a vent in the extruder. An impediment to the flow of material downstream of the water vent causes the flush to accumulate in the vented section for a period of time sufficient to remove the desired amount of the water phase. The flush works over the impediment and passes downstream to where vacuum is applied to remove residual water from the flush. The flush may be further combined with other ink ingredients to form an ink product.
EP07007155A 2006-05-01 2007-04-05 Continuous process for preparing of a pigment flush Withdrawn EP1854848A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/414,356 US7914615B2 (en) 2002-03-20 2006-05-01 Continuous process for preparing pigment flush

Publications (2)

Publication Number Publication Date
EP1854848A2 EP1854848A2 (en) 2007-11-14
EP1854848A3 true EP1854848A3 (en) 2009-11-04

Family

ID=38526480

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07007155A Withdrawn EP1854848A3 (en) 2006-05-01 2007-04-05 Continuous process for preparing of a pigment flush

Country Status (2)

Country Link
US (1) US7914615B2 (en)
EP (1) EP1854848A3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4005660A1 (en) * 2020-11-25 2022-06-01 Daw Se Device and method for producing a pigment and / or filler dispersion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474473A (en) * 1982-06-28 1984-10-02 Sakata Shokai Ltd. Method and equipment for manufacturing pigment dispersion
WO2001019927A1 (en) * 1999-09-17 2001-03-22 Flint Ink Corporation Process for preparing pigment flush
WO2001019926A2 (en) * 1999-09-17 2001-03-22 Flint Ink Corporation Process for preparing pigment flush
WO2003080740A1 (en) * 2002-03-20 2003-10-02 Sun Chemical Corporation Continuous process for preparing pigment flush

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398113A (en) * 1964-12-01 1968-08-20 Chemetron Corp Thermosetting resin pigment composition and process therefor
US4287000A (en) * 1979-12-26 1981-09-01 Eric Simon Grinding of pigments
US4309223A (en) 1980-01-03 1982-01-05 Basf Wyandotte Corporation Flushing process for pigments
US5151026A (en) 1990-10-31 1992-09-29 Werner & Pfleiderer Corp. Apparatus for removing liquids from solids
EP0538784B2 (en) * 1991-10-23 2000-12-27 Clariant GmbH Pigment preparations
DE10324568A1 (en) * 2003-05-30 2005-01-13 Clariant Gmbh Styrene-hypophosphite adduct and a process for its preparation and its use
US7947126B2 (en) * 2004-08-17 2011-05-24 Flint Group Incorporated Processes for preparing organic pigment dispersions and ink

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474473A (en) * 1982-06-28 1984-10-02 Sakata Shokai Ltd. Method and equipment for manufacturing pigment dispersion
WO2001019927A1 (en) * 1999-09-17 2001-03-22 Flint Ink Corporation Process for preparing pigment flush
WO2001019926A2 (en) * 1999-09-17 2001-03-22 Flint Ink Corporation Process for preparing pigment flush
WO2003080740A1 (en) * 2002-03-20 2003-10-02 Sun Chemical Corporation Continuous process for preparing pigment flush

Also Published As

Publication number Publication date
US7914615B2 (en) 2011-03-29
US20060196388A1 (en) 2006-09-07
EP1854848A2 (en) 2007-11-14

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